1// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// 27.8.1.4 Overridden virtual functions
22
23#include <fstream>
24#include <testsuite_hooks.h>
25#include <testsuite_io.h>
26
27// @require@ %-*.tst %-*.txt
28// @diff@ %-*.tst %*.txt
29
30const char name_01[] = "sgetc.txt"; // file with data in it
31const char name_03[] = "tmp_sbumpc_2io.tst"; // empty file, need to create
32
33void test05()
34{
35  using namespace std;
36  using namespace __gnu_test;
37  typedef filebuf::int_type 	int_type;
38  typedef filebuf::traits_type 	traits_type;
39
40  bool test __attribute__((unused)) = true;
41
42  // int_type sbumpc()
43  // if read_cur not avail returns uflow(), else return *read_cur & increment
44
45  // in | out 1
46  {
47    constraint_filebuf fb_03;
48    fb_03.pubsetbuf(0, 0);
49    fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc);
50    VERIFY( fb_03.unbuffered() );
51    int_type c5 = fb_03.sbumpc();
52    VERIFY( c5 == traits_type::eof() );
53    VERIFY( fb_03.unbuffered() );
54  }
55
56  // in | out 2
57  {
58    constraint_filebuf fb_01;
59    fb_01.pubsetbuf(0, 0);
60    fb_01.open(name_01, ios_base::in | ios_base::out);
61    VERIFY( fb_01.unbuffered() );
62
63    int_type c1 = fb_01.sbumpc();
64    VERIFY( c1 == '/' );
65    int_type c3 = fb_01.sbumpc();
66    VERIFY( c3 == '/' );
67
68    c1 = fb_01.sgetc();
69    int_type c2 = fb_01.sbumpc();
70    c3 = fb_01.sgetc();
71    VERIFY( c1 == ' ' );
72    VERIFY( c3 == '9' );
73    VERIFY( c1 == c2 );
74    VERIFY( c2 != c3 );
75
76    c1 = fb_01.sbumpc();
77    c2 = fb_01.sbumpc();
78    c3 = fb_01.sgetc();
79    VERIFY( c1 == '9' );
80    VERIFY( c2 == '9' );
81    VERIFY( c3 == '0' );
82
83    VERIFY( fb_01.unbuffered() );
84  }
85}
86
87int main()
88{
89  test05();
90  return 0;
91}
92